Mission Incorporated experienced the following events in Year 1, its first year of operation: 1. Received $123,000 cash from the issue of common stock. 2. Performed services on account for $89,000. 3. Paid $45,000 cash for operating expenses. 4. Paid a $5,400 cash dividend to the stockholders. Required a. What is the before-and after-closing balance in the Service Revenue account? What other accounts would be closed at the end of the accounting cycle? b. What is the balance of the Retained Earnings account that appears on the Year 1 balance sheet?